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MrRa [10]
3 years ago
9

What is 6.78 and 8.21 rounded to tenth nearest tenth

Mathematics
2 answers:
lilavasa [31]3 years ago
6 0

Answer:

6.78=6.8

8.21=8.2

yaroslaw [1]3 years ago
4 0
Here is your answer:

6.78 rounded to the nearest tenth = 7.00 because the 7 in 6.78 is greater then five.

8.21 rounded to the nearest tenth= 8.00 because the 2 in 8.21 is NOT greater than five.
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\begin{gathered} A=2\cdot l\cdot w+2\cdot l\cdot h+2\cdot w\cdot h \\  \\ \text{ We replacing:} \\  \\ A=2(13)(11)+2(13)(11)+2(11)(11) \\  \\ A=286+286+242 \\  \\ A=814\text{ in}^2 \\  \\ \text{ Convert inches to feet, knowing that 1 foot is equal to 12 inches} \\  \\ A=814\text{ in}^2\cdot\frac{(1\text{ ft\rparen}^2}{(12\text{ in\rparen}^2} \\  \\ A=5.65\text{ ft}^2 \end{gathered}

Therefore, the correct answer is 5.65 ft²

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